Science Dec 02

There are two broad types of tear gas—and they’re both engineered to cause pain.

Science Apr 20

Cannabis breeders have long been crossing plants to develop distinctive strains that purportedly do different things. But many scientists see the whole thing as a pipe dream.

Science Jan 30

A new discovery of how LSD changes a protein’s structure may explain why the drug is so powerful, and why its trips are so long and strange.

Science Sep 29

Kratom, a compound from a Southeast Asian tree, offers hope for a safer opioid alternative, but research could slow to a crawl as the DEA steps in.